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Imagine that you have a large house, and that this large house has several service doors. A door specified for the reception, another for the kitchen errands, a gate for the car, and a door for the maintenance staff. In other words, each door serves as an access to a certain service.
In the world of computers, there are also specific doors for each network application. When you open your web browser, and enter the address of a website, you ask your computer to communicate with another computer (the server on the Internet that hosts the requested website) through a door called a “port”. For each network application, there is therefore a specific port number. For example, the port that allows you to search for websites has the number 80.
It is through these ports, therefore, that hackers try to penetrate computer systems, and run applications that compromise the security of these systems. To close this gap, computer developers have created what are called firewalls: software (or hardware that runs this software) that closes unnecessary ports to block unwanted traffic, and analyzes incoming requests from the Internet for the presence of malware or computer viruses.
This device has become widely used in all operating systems, and is used to protect computers connected to the Internet, and provides a configuration interface that allows you to open ports essential to the operation, or to start up some applications which are essential to the systems.
VitoProg is specialized in hardware or software firewalls installation setting and configuration for your home computers or to protect your company’s network. You can contact VitoProg now via the contact form or by phone if you wish.
Learn more : Email security setting
Learn more : Antivirus installation
Learn more : Implementation of a reliable and automatic data backup process